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SUMMARY:Konstantin Druzhkov
DTSTART:20230405T162000Z
DTEND:20230405T180000Z
DTSTAMP:20260423T010138Z
UID:GDEq/86
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/GDEq/86/">La
 grangian formalism and the intrinsic geometry of PDEs</a>\nby Konstantin D
 ruzhkov as part of Geometry of differential equations seminar\n\n\nAbstrac
 t\nThis report is an attempt to answer the following question. Where exact
 ly does a differential equation contain information about its variational 
 nature? Apparently\, in the general case\, the concept of a presymplectic 
 structure as a closed variational 2-form may not be sufficient to describe
  variational principles in terms of intrinsic geometry. I will introduce t
 he concept of an internal Lagrangian and relate it to the Vinogradov C-spe
 ctral sequence.\n
LOCATION:https://researchseminars.org/talk/GDEq/86/
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